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Published on: January 7, 2019
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Classic or classical ketogenic diet? Definitions and nomenclature
Rajesh RamachandranNair1, Carl E Stafstrom2, Eric H Kossoff2
1Division of Pediatric Neurology, Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada.
Summary
The "classic" ketogenic diet (KD) should be defined by its individualized approach, not a minimum ratio. This clarifies the precise, tailored nature of this established dietary therapy.
Area of Science:
- Nutrition Science
- Dietary Therapies
Background:
- The terms
- classical
- and
- classic
- ketogenic diet (KD) have been used interchangeably since the late 20th century.
- The
- classic
- KD is a well-established dietary intervention, but its precise definition remains ambiguous.
Purpose of the Study:
- To advocate for the consistent use of the term
- classic
- KD.
- To propose a clear definition for the
- classic
- KD based on key defining characteristics.
Main Methods:
- Literature review and analysis of historical usage of KD terminology.
- Comparative analysis of different KD definitions and their macronutrient ratios.
Main Results:
- The term
- classic
- KD has gained widespread usage and is preferable for consistency.
- A precise definition of
- classic
- KD requires two key aspects: the principle of administration and the minimum ketogenic ratio.
- The defining feature of
- classic
- KD is its tailored, individualized approach to caloric intake and macronutrient distribution, with precisely measured food items.
Conclusions:
- The
- classic
- KD should be defined by its precise, individualized ratios and administration, not an arbitrary minimum ratio.
- Current definitions labeling
- classic
- KD with minimum ratios like 3:1 or 4:1 are misleading.
- The modified Atkins diet demonstrates that lower ratios can also induce ketosis, further highlighting the importance of individualized prescription for the
- classic
- KD.
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